Example usage for io.netty.channel ChannelHandlerContext pipeline

Introduction

In this page you can find the example usage for io.netty.channel ChannelHandlerContext pipeline.

Prototype

ChannelPipeline pipeline();

Source Link

Document

Return the assigned ChannelPipeline

Usage

From source file:org.apache.hadoop.hdfs.server.datanode.web.URLDispatcher.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, HttpRequest req) throws Exception {
    String uri = req.getUri();//from ww  w  .  j a  v  a  2  s. com
    ChannelPipeline p = ctx.pipeline();
    if (uri.startsWith(WEBHDFS_PREFIX)) {
        WebHdfsHandler h = new WebHdfsHandler(conf, confForCreate);
        p.replace(this, WebHdfsHandler.class.getSimpleName(), h);
        h.channelRead0(ctx, req);
    } else {
        SimpleHttpProxyHandler h = new SimpleHttpProxyHandler(proxyHost);
        p.replace(this, SimpleHttpProxyHandler.class.getSimpleName(), h);
        h.channelRead0(ctx, req);
    }
}

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From source file:org.apache.hadoop.hdfs.server.datanode.web.webhdfs.WebHdfsHandler.java

License:Apache License

private void onCreate(ChannelHandlerContext ctx) throws IOException, URISyntaxException {
    writeContinueHeader(ctx);//  w w  w.  j a  va  2  s  .co m

    final String nnId = params.namenodeId();
    final int bufferSize = params.bufferSize();
    final short replication = params.replication();
    final long blockSize = params.blockSize();
    final FsPermission permission = params.permission();

    EnumSet<CreateFlag> flags = params.overwrite() ? EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE)
            : EnumSet.of(CreateFlag.CREATE);

    final DFSClient dfsClient = newDfsClient(nnId, confForCreate);
    OutputStream out = dfsClient.createWrappedOutputStream(
            dfsClient.create(path, permission, flags, replication, blockSize, null, bufferSize, null, null),
            null);
    DefaultHttpResponse resp = new DefaultHttpResponse(HTTP_1_1, CREATED);

    final URI uri = new URI(HDFS_URI_SCHEME, nnId, path, null, null);
    resp.headers().set(LOCATION, uri.toString());
    resp.headers().set(CONTENT_LENGTH, 0);
    ctx.pipeline().replace(this, HdfsWriter.class.getSimpleName(), new HdfsWriter(dfsClient, out, resp));
}

---

From source file:org.apache.hadoop.hdfs.server.datanode.web.webhdfs.WebHdfsHandler.java

License:Apache License

private void onAppend(ChannelHandlerContext ctx) throws IOException {
    writeContinueHeader(ctx);//from  ww  w. j av  a  2 s .  c  om
    final String nnId = params.namenodeId();
    final int bufferSize = params.bufferSize();

    DFSClient dfsClient = newDfsClient(nnId, conf);
    OutputStream out = dfsClient.append(path, bufferSize, EnumSet.of(CreateFlag.APPEND), null, null);
    DefaultHttpResponse resp = new DefaultHttpResponse(HTTP_1_1, OK);
    resp.headers().set(CONTENT_LENGTH, 0);
    ctx.pipeline().replace(this, HdfsWriter.class.getSimpleName(), new HdfsWriter(dfsClient, out, resp));
}

---

From source file:org.apache.jackrabbit.oak.plugins.segment.standby.client.StandbyClientHandler.java

License:Apache License

synchronized void setHead(ChannelHandlerContext ctx, RecordId head) {
    if (store.getHead().getRecordId().equals(head)) {
        // all sync'ed up
        log.debug("no changes on sync.");
        return;/*from   w  w  w. j a  v a2 s  .  c o m*/
    }

    log.debug("updating current head to " + head);
    ctx.pipeline().remove(ReadTimeoutHandler.class);
    ctx.pipeline().remove(RecordIdDecoder.class);
    ctx.pipeline().remove(this);
    ctx.pipeline().addLast(new ReplyDecoder(store));

    ctx.pipeline().addLast(
            new SegmentLoaderHandler(store, head, this.observer.getID(), running, readTimeoutMs, autoClean));
    ctx.pipeline().fireUserEventTriggered("sync");
}

---

From source file:org.apache.tajo.HttpFileServerHandler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {

    if (request.getMethod() != HttpMethod.GET) {
        sendError(ctx, HttpResponseStatus.METHOD_NOT_ALLOWED);
        return;/*from  ww w  .  jav a2s.  c  om*/
    }

    final String path = sanitizeUri(request.getUri());
    if (path == null) {
        sendError(ctx, HttpResponseStatus.FORBIDDEN);
        return;
    }

    File file = new File(path);
    if (file.isHidden() || !file.exists()) {
        sendError(ctx, HttpResponseStatus.NOT_FOUND);
        return;
    }
    if (!file.isFile()) {
        sendError(ctx, HttpResponseStatus.FORBIDDEN);
        return;
    }

    RandomAccessFile raf;
    try {
        raf = new RandomAccessFile(file, "r");
    } catch (FileNotFoundException fnfe) {
        sendError(ctx, HttpResponseStatus.NOT_FOUND);
        return;
    }
    long fileLength = raf.length();

    HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
    HttpHeaders.setContentLength(response, fileLength);
    setContentTypeHeader(response);

    // Write the initial line and the header.
    ctx.write(response);

    // Write the content.
    ChannelFuture writeFuture;
    ChannelFuture lastContentFuture;
    if (ctx.pipeline().get(SslHandler.class) != null) {
        // Cannot use zero-copy with HTTPS.
        lastContentFuture = ctx.writeAndFlush(new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, 8192)));
    } else {
        // No encryption - use zero-copy.
        final FileRegion region = new DefaultFileRegion(raf.getChannel(), 0, fileLength);
        writeFuture = ctx.write(region);
        lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
        writeFuture.addListener(new ChannelProgressiveFutureListener() {
            @Override
            public void operationProgressed(ChannelProgressiveFuture future, long progress, long total)
                    throws Exception {
                LOG.trace(String.format("%s: %d / %d", path, progress, total));
            }

            @Override
            public void operationComplete(ChannelProgressiveFuture future) throws Exception {
                region.release();
            }
        });
    }

    // Decide whether to close the connection or not.
    if (!HttpHeaders.isKeepAlive(request)) {
        // Close the connection when the whole content is written out.
        lastContentFuture.addListener(ChannelFutureListener.CLOSE);
    }
}

---

From source file:org.apache.tajo.pullserver.HttpDataServerHandler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {

    if (request.getMethod() != HttpMethod.GET) {
        sendError(ctx, HttpResponseStatus.METHOD_NOT_ALLOWED);
        return;//from w  w w  .ja va  2s. c  om
    }

    String base = ContainerLocalizer.USERCACHE + "/" + userName + "/" + ContainerLocalizer.APPCACHE + "/"
            + appId + "/output" + "/";

    final Map<String, List<String>> params = new QueryStringDecoder(request.getUri()).parameters();

    List<FileChunk> chunks = Lists.newArrayList();
    List<String> taskIds = splitMaps(params.get("ta"));
    int sid = Integer.valueOf(params.get("sid").get(0));
    int partitionId = Integer.valueOf(params.get("p").get(0));
    for (String ta : taskIds) {

        File file = new File(base + "/" + sid + "/" + ta + "/output/" + partitionId);
        FileChunk chunk = new FileChunk(file, 0, file.length());
        chunks.add(chunk);
    }

    FileChunk[] file = chunks.toArray(new FileChunk[chunks.size()]);

    // Write the content.
    if (file == null) {
        HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.NO_CONTENT);
        if (!HttpHeaders.isKeepAlive(request)) {
            ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
        } else {
            response.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
            ctx.writeAndFlush(response);
        }
    } else {
        HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
        ChannelFuture writeFuture = null;
        long totalSize = 0;
        for (FileChunk chunk : file) {
            totalSize += chunk.length();
        }
        HttpHeaders.setContentLength(response, totalSize);

        if (HttpHeaders.isKeepAlive(request)) {
            response.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
        }
        // Write the initial line and the header.
        writeFuture = ctx.write(response);

        for (FileChunk chunk : file) {
            writeFuture = sendFile(ctx, chunk);
            if (writeFuture == null) {
                sendError(ctx, HttpResponseStatus.NOT_FOUND);
                return;
            }
        }
        if (ctx.pipeline().get(SslHandler.class) == null) {
            writeFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
        } else {
            ctx.flush();
        }

        // Decide whether to close the connection or not.
        if (!HttpHeaders.isKeepAlive(request)) {
            // Close the connection when the whole content is written out.
            writeFuture.addListener(ChannelFutureListener.CLOSE);
        }
    }

}

---

From source file:org.apache.tajo.pullserver.HttpDataServerHandler.java

License:Apache License

private ChannelFuture sendFile(ChannelHandlerContext ctx, FileChunk file) throws IOException {
    RandomAccessFile raf;//  w w w.j  a va 2  s .c o  m
    try {
        raf = new RandomAccessFile(file.getFile(), "r");
    } catch (FileNotFoundException fnfe) {
        return null;
    }

    ChannelFuture writeFuture;
    ChannelFuture lastContentFuture;
    if (ctx.pipeline().get(SslHandler.class) != null) {
        // Cannot use zero-copy with HTTPS.
        lastContentFuture = ctx
                .write(new HttpChunkedInput(new ChunkedFile(raf, file.startOffset(), file.length(), 8192)));
    } else {
        // No encryption - use zero-copy.
        final FileRegion region = new DefaultFileRegion(raf.getChannel(), file.startOffset(), file.length());
        writeFuture = ctx.write(region);
        lastContentFuture = ctx.write(LastHttpContent.EMPTY_LAST_CONTENT);
        writeFuture.addListener(new ChannelFutureListener() {
            public void operationComplete(ChannelFuture future) {
                if (region.refCnt() > 0) {
                    region.release();
                }
            }
        });
    }

    return lastContentFuture;
}

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From source file:org.apache.tajo.rpc.MonitorClientHandler.java

License:Apache License

@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
    // Initialize the message.
    ping = ctx.alloc().buffer(RpcConstants.PING_PACKET.length())
            .writeBytes(RpcConstants.PING_PACKET.getBytes(Charset.defaultCharset()));
    IdleStateHandler handler = ctx.pipeline().get(IdleStateHandler.class);
    if (handler != null && handler.getWriterIdleTimeInMillis() > 0) {
        enableMonitor = true;//  ww w .j a  v a  2  s  . c  om
    }
    super.channelActive(ctx);
}

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From source file:org.apache.tajo.ws.rs.netty.NettyRestHandlerContainer.java

License:Apache License

private URI getBaseUri(ChannelHandlerContext ctx, FullHttpRequest request) {
    URI baseUri;//from w  w  w  .  j a v a  2 s . c om
    String scheme;

    if (ctx.pipeline().get(SslHandler.class) == null) {
        scheme = "http";
    } else {
        scheme = "https";
    }

    List<String> hosts = request.headers().getAll(HttpHeaders.Names.HOST);
    try {
        if (hosts != null && hosts.size() > 0) {
            baseUri = new URI(scheme + "://" + hosts.get(0) + rootPath);
        } else {
            InetSocketAddress localAddress = (InetSocketAddress) ctx.channel().localAddress();
            baseUri = new URI(scheme, null, localAddress.getHostName(), localAddress.getPort(), rootPath, null,
                    null);
        }
    } catch (URISyntaxException e) {
        throw new IllegalArgumentException(e);
    }

    return baseUri;
}

---

From source file:org.apache.tinkerpop.gremlin.server.handler.SaslAndHttpBasicAuthenticationHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext ctx, final Object obj) throws Exception {
    if (obj instanceof HttpMessage && !WebSocketHandlerUtil.isWebSocket((HttpMessage) obj)) {
        if (null == ctx.pipeline().get(HTTP_AUTH)) {
            ctx.pipeline().addAfter(PIPELINE_AUTHENTICATOR, HTTP_AUTH,
                    new HttpBasicAuthenticationHandler(authenticator, this.authenticationSettings));
        }/* w  w w . j  av a2  s  . c om*/
        ctx.fireChannelRead(obj);
    } else {
        super.channelRead(ctx, obj);
    }
}

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